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2. Fade (audio engineering) - Wikipedia

   en.wikipedia.org/wiki/Fade_(audio_engineering)

   Here the fade-up generally occurs just before the final words in order for the cue to be given. [8] In stage productions the closing music is played from a predetermined time and fades up at the closing words in order to fit in exactly with the remaining program time. [8] Though relatively rare, songs can fade out then fade back in.

3. Audio feedback - Wikipedia

   en.wikipedia.org/wiki/Audio_feedback

   Block diagram of the signal-flow for a common feedback loop [1]: 118 . Audio feedback (also known as acoustic feedback, simply as feedback) is a positive feedback situation that may occur when an acoustic path exists between an audio output (for example, a loudspeaker) and its audio input (for example, a microphone or guitar pickup).

4. mp3PRO - Wikipedia

   en.wikipedia.org/wiki/MP3Pro

   mp3PRO is an unmaintained proprietary audio compression codec that combines the MP3 audio format with the spectral band replication (SBR) compression method. At the time it was developed it could reduce the size of a stereo MP3 by as much as 50% while maintaining the same relative quality. [1]

5. Goodness of fit - Wikipedia

   en.wikipedia.org/wiki/Goodness_of_fit

   The goodness of fit of a statistical model describes how well it fits a set of observations. Measures of goodness of fit typically summarize the discrepancy between observed values and the values expected under the model in question.

6. Degrees of freedom (statistics) - Wikipedia

   en.wikipedia.org/wiki/Degrees_of_freedom...

   The effective degrees of freedom of the fit can be defined in various ways to implement goodness-of-fit tests, cross-validation, and other statistical inference procedures. Here one can distinguish between regression effective degrees of freedom and residual effective degrees of freedom.

7. Pearson's chi-squared test - Wikipedia

   en.wikipedia.org/wiki/Pearson's_chi-squared_test

   For a test of goodness-of-fit, df = Cats − Params, where Cats is the number of observation categories recognized by the model, and Params is the number of parameters in the model adjusted to make the model best fit the observations: The number of categories reduced by the number of fitted parameters in the distribution.

8. Audio bit depth - Wikipedia

   en.wikipedia.org/wiki/Audio_bit_depth

   Bit depth affects bit rate and file size. Bits are the basic unit of data used in computing and digital communications. Bit rate refers to the amount of data, specifically bits, transmitted or received per second. In MP3 and other lossy compressed audio formats, bit rate

9. List of online music databases - Wikipedia

   en.wikipedia.org/wiki/List_of_online_music_databases

   Below is a table of online music databases that are largely free of charge. Many of the sites provide a specialized service or focus on a particular music genre. Some of these operate as an online music store or purchase referral service in some capacity. Among the sites that have information on the largest number of entities are those sites ...